<template>
    <div>
        <!--        面包屑导航区-->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!--        卡片试图区域-->
        <el-card class="box-card">
            <!--            搜索栏区域-->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input
                            placeholder="请输入内容"
                            v-model="queryInfo.query"
                            @change="getUserList"
                            clearable>
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addUserDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>


            <!--            用户列表区域-->
            <el-table :data="userList" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch
                                v-model="scope.row.mg_state"
                                active-color="#13ce66"
                                inactive-color="#ff4949"
                                @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <!--                width为操作列设定固定宽度-->
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <!--                        修改按钮-->
                        <el-button
                                type="primary"
                                icon="el-icon-edit"
                                size="mini"
                                @click="showEditDialog(scope.row.id)">
                                </el-button>
                        <!--                        删除按钮-->
                        <el-button
                                type="danger"
                                icon="el-icon-delete"
                                size="mini"
                                @click="removeUserById(scope.row.id)"></el-button>
                        <!--                        分配角色按钮-->
                        <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>


            <!--            分页区域-->
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pagenum"
                    :page-sizes="[1, 2, 5, 10]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total">
            </el-pagination>


<!--            添加用户的对话框-->
            <el-dialog
                    title="添加用户"
                    :visible.sync="addUserDialogVisible"
                    width="50%"
                    @close="addDialogClosed">

<!--                内容主题区域-->
                <el-form
                        :model="addForm"
                        :rules="addFormRules"
                        ref="addFormRef"
                        label-width="70px">
                    <el-form-item label="用户名" prop="username">
                        <el-input v-model="addForm.username"></el-input>
                    </el-form-item>
                    <el-form-item label="密码" prop="password">
                        <el-input type="password"  v-model="addForm.password"></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱" prop="email">
                        <el-input v-model="addForm.email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机" prop="mobile">
                        <el-input v-model="addForm.mobile"></el-input>
                    </el-form-item>
                </el-form>

<!--                底部区域-->
                <span slot="footer" class="dialog-footer">
                    <el-button @click="addUserDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="addUser">确 定</el-button>
                </span>
            </el-dialog>



<!--            修改用户的对话框-->
            <el-dialog
                    title="修改用户信息"
                    :visible.sync="editDialogVisible"
                    width="50%">
                <el-form
                        :model="editForm"
                        :rules="editFormRules"
                        ref="editFormRef"
                        label-width="70px"
                        @close="editDialogClosed">
                    <el-form-item label="用户名">
                        <el-input v-model="editForm.username" disabled></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱"  prop="email">
                        <el-input v-model="editForm.email" ></el-input>
                    </el-form-item>
                    <el-form-item label="手机"  prop="mobile">
                        <el-input v-model="editForm.mobile" ></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer"><el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
                </span>
            </el-dialog>


<!--            分配角色对话框-->

            <el-dialog
                    title="分配角色"
                    :visible.sync="setRoleDialogVisible"
                    width="50%"
                    @close="setRoleDialogClosed">
                <div>
                    <p>当前的用户 : {{userInfo.username}}</p>
                    <p>当前的角色 : {{userInfo.role_name}}</p>
                    <p>分配新角色 ：
                        <el-select v-model="selectedRoleId" placeholder="请选择">
                            <el-option
                                    v-for="item in rolesList"
                                    :key="item.id"
                                    :label="item.roleName"
                                    :value="item.id">
                            </el-option>
                        </el-select>
                    </p>
                </div>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
                </span>
            </el-dialog>

        </el-card>
    </div>
</template>

<script>
    export default {
        data() {
            // 验证邮箱的规则
            var checkEmail = (rule,value,cb) => {
                // 验证邮箱的正则表达式
                const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/


                if(regEmail.test(value)) {
                    // 合法邮箱
                    return cb()
                }

                cb(new Error("请输入合法的邮箱"))
            }

            // 验证手机号的规则
            var checkMobile = (rule,value,cb) => {
                // 验证手机号的正则表达式
                const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

                if(regMobile.test(value)) {
                    // 合法手机号码
                    return cb()
                }

                cb(new Error("请输入合法的手机号码"))
            }

            return {
                // 获取用户列表的参数对象
                queryInfo: {
                    query: '',
                    // 当前页数
                    pagenum: 1,
                    // 当前每页显示多少条数据
                    pagesize: 5
                },
                // 用户列表数据
                userList: [],
                // 总用户数
                total: 0,
                // 控制添加用户对话框的显示与隐藏
                addUserDialogVisible: false,
                // 添加用户的表单数据
                addForm: {
                    username: '',
                    password: '',
                    email: '',
                    mobile: ''
                },
                // 添加表单的验证规则对象
                addFormRules: {
                    username: [
                        {required: true, message: '请输入用户名' ,trigger: 'blur'},
                        {min: 3, max: 10 , message: '用户名的长度在3~10个字符之间', trigger: 'blur'}
                    ],
                    password: [
                        {required: true, message: '请输入密码' ,trigger: 'blur'},
                        {min: 3, max: 10 , message: '用户名的长度在6~15个字符之间', trigger: 'blur'}
                    ],
                    email: [
                        {required: true, message: '请输入邮箱' ,trigger: 'blur'},
                        {validator : checkEmail , trigger: 'blur'}
                    ],
                    mobile: [
                        {required: true, message: '请输入手机号码' ,trigger: 'blur'},
                        {validator : checkMobile , trigger: 'blur'}
                    ]
                },
                // 控制修改用户对话框的显示与隐藏
                editDialogVisible: false,
                // 查询到的用户信息对象
                editForm: {},
                // 修改表单的验证规则对象
                editFormRules: {
                    email: [
                        {required: true, message: '请输入邮箱' ,trigger: 'blur'},
                        {validator : checkEmail , trigger: 'blur'}
                    ],
                    mobile: [
                        {required: true, message: '请输入手机号码' ,trigger: 'blur'},
                        {validator : checkMobile , trigger: 'blur'}
                    ]
                },
                // 控制分配角色对话框的现实与隐藏
                setRoleDialogVisible: false,
                // 需要被分配角色的用户信息
                userInfo: {},
                // 所有角色的数据列表
                rolesList:[],
                // 被选中的角色的id
                selectedRoleId:''
            }
        },
        created() {
            this.getUserList()
        },
        methods: {
            async getUserList() {
                const {data: res} = await this.$http.get("users", {
                    params: this.queryInfo
                })
                if (res.meta.status !== 200) {
                    return this.$message.error("获取用户列表失败")
                }
                this.userList = res.data.users
                this.total = res.data.total
            },
            // 监听 pagesize 的改变事件
            handleSizeChange(newPageSize) {
                this.queryInfo.pagesize = newPageSize
                this.getUserList()
            },
            // 监听 当前页  的改变事件
            handleCurrentChange(newCurrentPage) {
                this.queryInfo.pagenum = newCurrentPage
                this.getUserList()
            },
            // 监听switch状态的改变
            async userStateChanged(userInfo) {
                const {data: res} = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
                if (res.meta.status !== 200) {
                    userInfo.mg_state = !userInfo.mg_state
                    return this.$message.error("更新用户状态失败")
                }
                this.$message.success("更新用户状态成功")
            },
            // 监听添加用户对话框的关闭事件
            addDialogClosed() {
                this.$refs.addFormRef.resetFields()
            },
            // 点击按钮 ， 添加用户
            addUser() {
                this.$refs.addFormRef.validate( async valid => {

                    if(!valid) return

                    const { data : res} = await  this.$http.post('users',this.addForm)

                    if( res.meta.status !== 201) {
                        this.$message.error("添加用户失败")
                    }

                    this.$message.success("添加用户成功")

                    this.addUserDialogVisible = false

                    this.getUserList()

                })
            },
            // 展示编辑用户的对话框
            async showEditDialog(id) {
                const {data : res } = await this.$http.get(`users/${id}`)
                if(res.meta.status !== 200) return this.$message.error("查询用户信息失败")
                this.editForm = res.data
                this.editDialogVisible = true;
            },
            //监听编辑用户的对话框的关闭事件
            editDialogClosed() {
                this.$refs.editFormRef.resetFields()
            },
            // 修改用户信息并提交
            editUserInfo() {
                this.$refs.editFormRef.validate(async valid => {
                    if(!valid) return this.$message.error("请准确填充信息")
                    const { data : res} = await this.$http.put(`users/${this.editForm.id}`,{
                        email: this.editForm.email,
                        mobile : this.editForm.mobile
                    })
                    if(res.meta.status !== 200 ) return  this.$message.error("修改用户信息失败")
                    this.$message.success("更新用户信息成功")
                    this.editDialogVisible = false
                    this.getUserList()
                })
            },
            // 根据id删除用户
            removeUserById(id) {
                 this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(async() => {
                    const {data : res } = await this.$http.delete(`users/${id}`)
                     if( res.meta.status !== 200 ) return  this.$message.error("删除用户失败")
                     this.getUserList()
                    this.$message({
                        type: 'success',
                        message: '删除成功!'
                    });
                }).catch(() => {
                    this.$message({
                        type: 'info',
                        message: '已取消删除'
                    });
                });
            },
            // 展示分配角色的对话框
            async setRole(userInfo) {
                this.userInfo = userInfo
                const {data : res } = await this.$http.get(`roles`)
                if(res.meta.status !== 200 ) return this.$message.error("获取角色列表失败")
                this.rolesList = res.data
                this.setRoleDialogVisible = true
            },
            //分配用户角色
            async saveRoleInfo() {
                if(!this.selectedRoleId) {
                    return this.$message.error("请选择要分配的角色")
                }
                const {data : res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
                    rid:this.selectedRoleId
                })
                if(res.meta.status !== 200 ) return  this.$message.error("设置角色失败")
                this.$message.success("设置角色成功")
                this.getUserList()
                this.setRoleDialogVisible = false
            },
            // 监听分配角色对话框的关闭事件
            setRoleDialogClosed() {
                this.selectedRoleId = ''
            }
        }
    }
</script>

<style lang="less" scoped>

</style>
